0001628280-23-005891.txt : 20230301 0001628280-23-005891.hdr.sgml : 20230301 20230301173546 ACCESSION NUMBER: 0001628280-23-005891 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230228 FILED AS OF DATE: 20230301 DATE AS OF CHANGE: 20230301 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: CANTIE JOSEPH S CENTRAL INDEX KEY: 0001275621 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36873 FILM NUMBER: 23695284 MAIL ADDRESS: STREET 1: C/O DELPHI AUTOMOTIVE STREET 2: 5725 DELPHI DRIVE CITY: TROY STATE: MI ZIP: 48098 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Summit Materials, Inc. CENTRAL INDEX KEY: 0001621563 STANDARD INDUSTRIAL CLASSIFICATION: MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400] IRS NUMBER: 471984212 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1550 WYNKOOP STREET, 3RD FLOOR CITY: DENVER STATE: CO ZIP: 80202 BUSINESS PHONE: 303-893-0012 MAIL ADDRESS: STREET 1: 1550 WYNKOOP STREET, 3RD FLOOR CITY: DENVER STATE: CO ZIP: 80202 4 1 wf-form4_167771012629127.xml FORM 4 X0306 4 2023-02-28 0 0001621563 Summit Materials, Inc. SUM 0001275621 CANTIE JOSEPH S C/O SUMMIT MATERIALS, INC. 1801 CALIFORNIA STREET, SUITE 3500 DENVER CO 80202 1 0 0 0 Class A Common Stock 2023-02-28 4 M 0 3815 A 35085 D Class A Common Stock 5100 I See Footnote Restricted Stock Units 2023-02-28 4 M 0 3815 0 D Class A Common Stock 3815.0 0 D Reflects restricted stock units that upon vesting converted into shares of Class A common stock of the Issuer ("Class A Common Stock") on a one-for-one basis. Total holdings include shares of Class A Common Stock received pursuant to a stock dividend paid on December 29, 2022. Reflects securities held by a trust for the benefit of the Reporting Person, for which the Reporting Person and his spouse serve as trustees. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will be settled in either Class A Common Stock or cash (or a combination thereof) at the discretion of the Issuer's Human Capital and Compensation Committee. On March 1, 2022, the Reporting Person was granted 3,815 restricted stock units that vested on February 28, 2023. /s/ Christopher B. Gaskill, as Attorney-in-Fact 2023-03-01